National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Yankton, Chan Gurney Municipal Airport (KYKN)

Lat: 42.92°NLon: 97.38°WElev: 1306ft.

Mostly Cloudy

78°F

26°C

Humidity 71%
Wind Speed NE 10 mph
Barometer 29.92 in (1013.3 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 13 Aug 2:56 pm CDT
Extended Forecast for

Gayville SD

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms before 5pm. Mostly cloudy, with a high near 79. Northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 79 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 66. East northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Slight Chance
    T-storms then
    Showers

  • Friday

    Friday: Showers and thunderstorms likely, mainly before 4pm. Cloudy, with a high near 76. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers after 5am. Mostly cloudy, with a low around 65. East northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers before 7am, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 79. Calm wind becoming west northwest around 5 mph in the afternoon. Chance of precipitation is 50%.

    High: 79 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Northwest wind around 5 mph.

    Low: 63 °F

    Chance
    T-storms

  • Sunday

    Sunday: A chance of thunderstorms before 7am. Mostly sunny, with a high near 76. Chance of precipitation is 30%.

    High: 76 °F

    Chance
    T-storms then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms before 5pm. Mostly cloudy, with a high near 79. Northeast wind around 15 mph, with gusts as high as 25 mph.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 66. East northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and thunderstorms likely, mainly before 4pm. Cloudy, with a high near 76. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers after 5am. Mostly cloudy, with a low around 65. East northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Saturday
A slight chance of showers before 7am, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 79. Calm wind becoming west northwest around 5 mph in the afternoon. Chance of precipitation is 50%.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Northwest wind around 5 mph.
Sunday
A chance of thunderstorms before 7am. Mostly sunny, with a high near 76. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 57.
Monday
Mostly sunny, with a high near 78.
Monday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Tuesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Wednesday
Mostly cloudy, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Gayville SD
 42.88°N 97.16°W (Elev. 1171 ft)
Last Update:
2:23 pm CDT Aug 13, 2026
Forecast Valid:
3pm CDT Aug 13, 2026-6pm CDT Aug 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation